Operating unit of treatment tool for endoscope



FIG. 1 is a front, top and right side perspective view of an operating unit of treatment tool for endoscope, showing my new design;

FIG. 2 is a rear, bottom and left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a cross sectional view thereof, taken along the line 9-9 in FIG. 3; and,

FIG. 10 is a cross sectional view thereof, taken along the line 10-10 in FIG. 3.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for an operating unit of treatment tool for endoscope, as shown and described. 